Calyciphyllines H-M, new Daphniphyllum alkaloids from Daphniphyllum calycinum |
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| Authors: | Shizuka Saito Takaaki Kubota Norimichi Nakahata |
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| Institution: | a Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
b Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan |
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| Abstract: | Six new Daphniphyllum alkaloids, calyciphyllines H-M (1-6), were isolated from the leaves and stems of Daphniphyllum calycinum (Daphniphyllaceae). The structures and relative stereochemistry of 1-6 were elucidated on the basis of spectroscopic data, and the absolute stereochemistry of 3 was assigned by PGME method. |
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| Keywords: | Daphniphyllum calycinum Daphniphyllum alkaloid Calyciphyllines H-M |
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